Add PEG/PEG2/PCI Option to ASUS P6X58D BIOS

I have a new ASUS P6X58D and I really need a BIOS option that is not present (but I'm sure if present somewhere...just hidden).

I have a PCI and a PCIe video card in the system and I need the ability to have the PCI card be the primary boot video device. No matter what slots I move the cards to, the PCIe card always becomes primary.

On my Gigabyte boards I always have the choice with PEG/PEG2/PCI options in the BIOS. No such option on the ASUS.